Optimization Research on Ampacity of Underground High Voltage Cable Based on Interior Point Method

1st International Conference on Frontiers of Materials Synthesis and Processing

材料科学;化学

Huang, Feng^1 ; Li, Jing^1

Electric Power Research Institute of Guangxi Power Grid Co. Ltd, Nanning

530023, China^1

关键词: Constraint conditions;    Economic performance;    Interior-point method;    Objective functions;    Optimal operating current;    Optimization researches;    Power transmission capacity;    Transmission capacities;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/274/1/012123/pdf
DOI  :  10.1088/1757-899X/274/1/012123

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The conservative operation method which takes unified current-carrying capacity as maximum load current can't make full use of the overall power transmission capacity of the cable. It's not the optimal operation state for the cable cluster. In order to improve the transmission capacity of underground cables in cluster, this paper regards the maximum overall load current as the objective function and the temperature of any cables lower than maximum permissible temperature as constraint condition. The interior point method which is very effective for nonlinear problem is put forward to solve the extreme value of the problem and determine the optimal operating current of each loop. The results show that the optimal solutions obtained with the purposed method is able to increase the total load current about 5%. It greatly improves the economic performance of the cable cluster.